User's Manual
34 sensing.honeywell.com
Installation and Technical Manual for the
Limitless™ Multi-Protocol Receiver, WMPR Series
ISSUE 1
32309669
8.6 | Antenna Environmental
Usage/Concerns
8.6.1 | Choosing an Antenna/Cable to Meet
Application Exposure Conditions
There is no antenna or cable design impervious to every environ-
mental condition it could be exposed to. Review the application
environment as follows:
Step Action
1 Determine where the antenna will be installed and
the application conditions: indoor, outdoor, or limited
outdoor exposure. Even if the antenna is going to be
used indoors, an outdoor antenna may be more suit-
able (i.e., resistant to fluids, rigid construction, etc.)
2
Determine what the antenna may be subjected to (i.e.,
uids, chemicals, oils, wind, shock, vibration, etc.)
3
A. Review antenna and/or cable materials (listed in
Section 8.1) with respect to resistance of chem-
icals and uids in the application. If choosing an
adhesive mount, adhesive resistance testing may
be necessary.
B. If shock, vibration, wind, rain, sleet/snow, etc. are
in the application, choose an antenna rated for out-
doors and has a rigid design as dened in Sections
8.1 and 8.3.3.2.
4
This step may be required to provide an extra level of
protection, especially if the application may be sub-
jecting antennas and cables to liquids. The RP-SMA
connections, tilt/swivel joints, and cable entrances are
potential leak paths that could lead to corrosion. The
following procedure is one way to provide extra protec-
tion to these connections and joints.
Ensure the area applying tape to is clean from contam-
inants by rst cleaning it with mild detergent/water and
completely dry. Follow with an isopropyl alcohol wipe of
the area. (See Figure 54).
Layer 1: Wrap a layer of polyvinyl chloride insulat-
ing tape
Layer 2: Wrap a layer of rubber splicing tape i.e.
Scotch™ 23
Layer 3: Wrap a layer of UV stable polyvinyl chlo-
ride insulating tape
Layer 1 allows the user to remove Layer 2 for con-
nector inspection, antenna replacement, reposi-
tioning of the tilt/swivel antenna, etc.
In the end, the antenna/cable choice may need to be tested in
the actual application conditions to prove suitability.
8.6.2 | Protection of Antenna Connections
If the antenna and connectors are not protected by the radome, the connector and threads should be protected from the elements
thorugh an application of protective tape.
• A recommended protective tape is COAX-SEAL
®
#104 Hand Moldable Plastic Weatherproofing Tape, available from electrical
supply houses.
• Also acceptable is Scotch
®
Premium Vinyl Electrical Tape 88-Super tape, available from 3M.
Figure 57. Application of Protective Tape
Step 1 - Remove radome. Step 2 - First apply 1/2 inch wide COAX-
SEAL
®
(exible and moldable material)
Step 3 - Secondly, apply 3M Scotch
®
Premium Vinyl Electrical Tape 88-Super
Ultimately, the antenna/cable choice may need to be tested in the actual application conditions to prove suitability for the environment.